🎯 Algorithm-Based Semi-Auto Lotto Combiner

Key numbers plus algorithmic combinations

Choose 1 to 4 key numbers and a heuristic algorithm fills in the rest to create balanced combinations. You can pick from 4 algorithms: Balanced, Random, Hot Number, and Pattern.

Select numbers to lock in

Choose 1 to 4 key numbers you want to include

Selected locked numbers: 0

Configure the heuristic algorithm

Number of combinations to generate

Additional filters (optional)

Exclude consecutive numbers

Minimum AC value

Sum range

GUIDE

Learn more

What is a semi-auto lotto combiner?

A semi-auto lotto combiner lets you select just 1 to 4 key numbers, after which one of 4 heuristic algorithms (Balanced, Random, Hot Number, Pattern) automatically fills in the remaining numbers. The Balanced algorithm produces combinations balanced across odd/even, high/low, and number ranges; Random produces fully random combinations; Hot Number focuses on numbers drawn frequently in recent draws; and Pattern analyzes past winning patterns to build combinations. It is handy when you have key numbers you definitely want to include but prefer to leave the rest to an algorithm, or when you want to compare combinations of different styles across multiple algorithms.

What is AC (Arithmetic Complexity)?

AC (Arithmetic Complexity) is an indicator that expresses the diversity of a lottery number combination. It calculates the difference between each pair of numbers and counts how many unique differences there are. For example: [1, 2, 3, 4, 5, 6] → differences: 1,2,3,4,5 → AC=5 / [1, 11, 21, 31, 41, 45] → differences: 4,10,14,20,24,30,40,44, etc. → AC=13. Generally, the higher the AC value, the more evenly the numbers are distributed, while the lower the AC value, the more consecutive or regular the numbers are.

Frequently asked questions

What exactly does "semi-auto" mean here?

You manually pick 1-4 key numbers yourself (the "semi" part), and one of 4 heuristic algorithms automatically fills in the remaining numbers (the "auto" part). It sits between a fully manual pick and a fully random auto-generator.

How do the Balanced, Random, Hot Number, and Pattern algorithms differ?

Balanced fills the remaining slots to even out odd/even, high/low, and range ratios. Random fills them completely at random. Hot Number prioritizes numbers that have appeared frequently in recent draws. Pattern analyzes past winning-number patterns (spacing, distribution, etc.) and fills numbers following a similar pattern.

Can I use this with only 1 key number selected?

Yes, you can select anywhere from 1 to 4 key numbers. You can lock in just 1 and let the algorithm fill the other 5, or lock in 4 and let it fill only 2 — the balance is entirely up to you.

How do the extra filters like excluding consecutive numbers or setting a minimum AC value work?

After the algorithm fills in the remaining numbers, only combinations that satisfy your additional filters (exclude consecutive numbers, minimum AC value, sum range) are shown as final results. Setting the filters too strictly may prevent any matching combination from being generated.

If I generate multiple times with the same key numbers, will I get different results each time?

Yes. All four algorithms — Balanced, Random, Hot Number, and Pattern — include a random element when filling the remaining numbers, so even with the same key numbers and algorithm, each generation can produce a different combination.